Published in Scientific Papers. Series B, Horticulture, Vol. LXV, Issue 1
Written by Diyan GEORGIEV, Maria GEORGIEVA
The scientific experiment was conducted in a collection plantation of the Research Institute of Mountain Stockbreeding and Agriculture in Troyan. The objective of the study was the primocane raspberry cultivar 'Lyulin’. The vegetative indicators, such as average number of shoots (1 m2), average height (cm) and average thickness (mm) of shoots and also some reproductive indicators, such as average fruit weight (g), and average yield per one linear meter of intra-row area were analyzed. Fruit bearing was reported from the spring-summer harvest, intermediate (formed by additional fruit twigs between two fruit bearing) and summer-autumn harvest. Тhe largest average number of shoots were reported in the first experimental year - 26.17 items. The average shoot height reached 118 cm in the first two years (2018 and 2019). The largest average shoot thickness (8.23 mm) was measured in 2019. The highest yield in the spring-summer harvest was gathered in 2020 (1.31 kg/1 m2), from the intermediate harvest in 2019 (0.96 kg/1 m2) and from the summer-autumn harvest of the same year (2.74 kg/1m2). The highest average fruit weight (3.25 g) was registered in the intermediate harvest (in 2019).
[Read full article] [Citation]
